CommoditiesUS company is building a bigger facility to complement existing pilot factory in MinneapolisHonda Motor's investment in Niron Magnetics is the latest example of Japan-U.S. critical minerals collaboration now that China is restricting rare-earth exports. (Source photos by AP and Reuters)PAK YIUSeptember 9, 2026 22:01 JSTNEW YORK -- Japan's Honda Motor is investing in Niron Magnetics, a U.S. startup working to commercialize magnets that do not use rare earths, the latter announced on Wednesday, as both countries face supply chain friction with Beijing over the critical minerals.